21311110132 has 24 divisors (see below), whose sum is σ = 40203871232. Its totient is φ = 9825948000.

The previous prime is 21311110127. The next prime is 21311110147. The reversal of 21311110132 is 23101111312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155244 + ... + 258307.

Almost surely, 2^21311110132 is an apocalyptic number.

It is an amenable number.

21311110132 is a deficient number, since it is larger than the sum of its proper divisors (18892761100).

21311110132 is a wasteful number, since it uses less digits than its factorization.

21311110132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414559 (or 414557 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 21311110132 its reverse (23101111312), we get a palindrome (44412221444).

The spelling of 21311110132 in words is "twenty-one billion, three hundred eleven million, one hundred ten thousand, one hundred thirty-two".